[PATCH v2 26/27] hpsa: add in sas transport class

Don Brace
2015-11-04T21:56:27Z

From: Kevin Barnett <kevin.barnett@pmcs.com>

Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Reviewed-by: Justin Lindley <justin.lindley@pmcs.com>
Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
---
drivers/scsi/hpsa.c | 550 +++++++++++++++++++++++++++++++++++++++++++++--
drivers/scsi/hpsa.h | 27 ++
drivers/scsi/hpsa_cmd.h | 14 +
3 files changed, 570 insertions(+), 21 deletions(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 910b2d1..5f02a60 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -41,6 +41,7 @@
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_eh.h>
+#include <scsi/scsi_transport_sas.h>
#include <scsi/scsi_dbg.h>
#include <linux/cciss_ioctl.h>
#include <linux/string.h>
@@ -205,6 +206,16 @@ static struct board_type products[] = {
{0xFFFF103C, "Unknown Smart Array", &SA5_access},
};

+static struct scsi_transport_template *hpsa_sas_transport_template;
+static int hpsa_add_sas_host(struct ctlr_info *h);
+static void hpsa_delete_sas_host(struct ctlr_info *h);
+static int hpsa_add_sas_device(struct hpsa_sas_node *hpsa_sas_node,
+ struct hpsa_scsi_dev_t *device);
+static void hpsa_remove_sas_device(struct hpsa_scsi_dev_t *device);
+static struct hpsa_scsi_dev_t
+ *hpsa_find_device_by_sas_rphy(struct ctlr_info *h,
+ struct sas_rphy *rphy);
+
#define SCSI_CMD_BUSY ((struct scsi_cmnd *)&hpsa_cmd_busy)
static const struct scsi_cmnd hpsa_cmd_busy;
#define SCSI_CMD_IDLE ((struct scsi_cmnd *)&hpsa_cmd_idle)
@@ -276,6 +287,8 @@ static void hpsa_command_resubmit_worker(struct work_struct *work);
static u32 lockup_detected(struct ctlr_info *h);
static int detect_controller_lockup(struct ctlr_info *h);
static void hpsa_disable_rld_caching(struct ctlr_info *h);
+static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info *h,
+ struct ReportExtendedLUNdata *buf, int bufsize);
static int hpsa_luns_changed(struct ctlr_info *h);

static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
@@ -1692,8 +1705,12 @@ static int hpsa_add_device(struct ctlr_info *h, struct hpsa_scsi_dev_t *device)
if (!h->scsi_host)
return 1;

- rc = scsi_add_device(h->scsi_host, device->bus,
+ if (is_logical_device(device)) /* RAID */
+ rc = scsi_add_device(h->scsi_host, device->bus,
device->target, device->lun);
+ else /* HBA */
+ rc = hpsa_add_sas_device(h->sas_host, device);
+
return rc;
}

@@ -1705,21 +1722,23 @@ static void hpsa_remove_device(struct ctlr_info *h,
if (!h->scsi_host)
return;

- sdev = scsi_device_lookup(h->scsi_host, device->bus,
+ if (is_logical_device(device)) { /* RAID */
+ sdev = scsi_device_lookup(h->scsi_host, device->bus,
device->target, device->lun);
-
- if (sdev) {
- scsi_remove_device(sdev);
- scsi_device_put(sdev);
- } else {
- /*
- * We don't expect to get here. Future commands
- * to this device will get a selection timeout as
- * if the device were gone.
- */
- hpsa_show_dev_msg(KERN_WARNING, h, device,
+ if (sdev) {
+ scsi_remove_device(sdev);
+ scsi_device_put(sdev);
+ } else {
+ /*
+ * We don't expect to get here. Future commands
+ * to this device will get a selection timeout as
+ * if the device were gone.
+ */
+ hpsa_show_dev_msg(KERN_WARNING, h, device,
"didn't find device for removal.");
- }
+ }
+ } else /* HBA */
+ hpsa_remove_sas_device(device);
}

static void adjust_hpsa_scsi_table(struct ctlr_info *h,
@@ -1912,11 +1931,24 @@ static int hpsa_slave_alloc(struct scsi_device *sdev)

h = sdev_to_hba(sdev);
spin_lock_irqsave(&h->devlock, flags);
- sd = lookup_hpsa_scsi_dev(h, sdev_channel(sdev),
- sdev_id(sdev), sdev->lun);
- if (likely(sd)) {
+ if (sdev_channel(sdev) == HPSA_PHYSICAL_DEVICE_BUS) {
+ struct scsi_target *starget;
+ struct sas_rphy *rphy;
+
+ starget = scsi_target(sdev);
+ rphy = target_to_rphy(starget);
+ sd = hpsa_find_device_by_sas_rphy(h, rphy);
+ if (sd) {
+ sd->target = sdev_id(sdev);
+ sd->lun = sdev->lun;
+ }
+ } else
+ sd = lookup_hpsa_scsi_dev(h, sdev_channel(sdev),
+ sdev_id(sdev), sdev->lun);
+
+ if (sd && sd->expose_device) {
atomic_set(&sd->ioaccel_cmds_out, 0);
- sdev->hostdata = sd->expose_device ? sd : NULL;
+ sdev->hostdata = sd;
} else
sdev->hostdata = NULL;
spin_unlock_irqrestore(&h->devlock, flags);
@@ -3066,6 +3098,38 @@ out:
return rc;
}

+static int hpsa_bmic_sense_subsystem_information(struct ctlr_info *h,
+ unsigned char scsi3addr[], u16 bmic_device_index,
+ struct bmic_sense_subsystem_info *buf, size_t bufsize)
+{
+ int rc = IO_OK;
+ struct CommandList *c;
+ struct ErrorInfo *ei;
+
+ c = cmd_alloc(h);
+
+ rc = fill_cmd(c, BMIC_SENSE_SUBSYSTEM_INFORMATION, h, buf, bufsize,
+ 0, RAID_CTLR_LUNID, TYPE_CMD);
+ if (rc)
+ goto out;
+
+ c->Request.CDB[2] = bmic_device_index & 0xff;
+ c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff;
+
+ rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
+ PCI_DMA_FROMDEVICE, NO_TIMEOUT);
+ if (rc)
+ goto out;
+ ei = c->err_info;
+ if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
+ hpsa_scsi_interpret_error(h, c);
+ rc = -1;
+ }
+out:
+ cmd_free(h, c);
+ return rc;
+}
+
static int hpsa_bmic_id_controller(struct ctlr_info *h,
struct bmic_identify_controller *buf, size_t bufsize)
{
@@ -3094,7 +3158,6 @@ out:
return rc;
}

-
static int hpsa_bmic_id_physical_device(struct ctlr_info *h,
unsigned char scsi3addr[], u16 bmic_device_index,
struct bmic_identify_physical_device *buf, size_t bufsize)
@@ -3121,9 +3184,71 @@ static int hpsa_bmic_id_physical_device(struct ctlr_info *h,
}
out:
cmd_free(h, c);
+
return rc;
}

+static u64 hpsa_get_sas_address_from_report_physical(struct ctlr_info *h,
+ unsigned char *scsi3addr)
+{
+ struct ReportExtendedLUNdata *physdev;
+ u32 nphysicals;
+ u64 sa = 0;
+ int i;
+
+ physdev = kzalloc(sizeof(*physdev), GFP_KERNEL);
+ if (!physdev)
+ return 0;
+
+ if (hpsa_scsi_do_report_phys_luns(h, physdev, sizeof(*physdev))) {
+ dev_err(&h->pdev->dev, "report physical LUNs failed.\n");
+ kfree(physdev);
+ return 0;
+ }
+ nphysicals = get_unaligned_be32(physdev->LUNListLength) / 24;
+
+ for (i = 0; i < nphysicals; i++)
+ if (!memcmp(&physdev->LUN[i].lunid[0], scsi3addr, 8)) {
+ sa = get_unaligned_be64(&physdev->LUN[i].wwid[0]);
+ break;
+ }
+
+ kfree(physdev);
+
+ return sa;
+}
+
+static void hpsa_get_sas_address(struct ctlr_info *h, unsigned char *scsi3addr,
+ struct hpsa_scsi_dev_t *dev)
+{
+ int rc;
+ u64 sa = 0;
+
+ if (is_hba_lunid(scsi3addr)) {
+ struct bmic_sense_subsystem_info *ssi;
+
+ ssi = kzalloc(sizeof(*ssi), GFP_KERNEL);
+ if (ssi == NULL) {
+ dev_warn(&h->pdev->dev,
+ "%s: out of memory\n", __func__);
+ return;
+ }
+
+ rc = hpsa_bmic_sense_subsystem_information(h,
+ scsi3addr, 0, ssi, sizeof(*ssi));
+ if (rc == 0) {
+ sa = get_unaligned_be64(ssi->primary_world_wide_id);
+ h->sas_address = sa;
+ }
+
+ kfree(ssi);
+ } else
+ sa = hpsa_get_sas_address_from_report_physical(h, scsi3addr);
+
+ dev->sas_address = sa;
+}
+
+/* Get a device id from inquiry page 0x83 */
static int hpsa_vpd_page_supported(struct ctlr_info *h,
unsigned char scsi3addr[], u8 page)
{
@@ -3955,6 +4080,13 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h)
else
this_device->expose_device = 1;

+
+ /*
+ * Get the SAS address for physical devices that are exposed.
+ */
+ if (this_device->physical_device && this_device->expose_device)
+ hpsa_get_sas_address(h, lunaddrbytes, this_device);
+
switch (this_device->devtype) {
case TYPE_ROM:
/* We don't *really* support actual CD-ROM devices,
@@ -4000,6 +4132,18 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h)
if (ncurrent >= HPSA_MAX_DEVICES)
break;
}
+
+ if (h->sas_host == NULL) {
+ int rc = 0;
+
+ rc = hpsa_add_sas_host(h);
+ if (rc) {
+ dev_warn(&h->pdev->dev,
+ "Could not add sas host %d\n", rc);
+ goto out;
+ }
+ }
+
adjust_hpsa_scsi_table(h, currentsd, ncurrent);
out:
kfree(tmpdevice);
@@ -5131,6 +5275,7 @@ static int hpsa_scsi_host_alloc(struct ctlr_info *h)
sh->can_queue = h->nr_cmds - HPSA_NRESERVED_CMDS;
sh->cmd_per_lun = sh->can_queue;
sh->sg_tablesize = h->maxsgentries;
+ sh->transportt = hpsa_sas_transport_template;
sh->hostdata[0] = (unsigned long) h;
sh->irq = h->intr[h->intr_mode];
sh->unique_id = sh->irq;
@@ -6479,6 +6624,16 @@ static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
c->Request.CDB[7] = (size >> 16) & 0xFF;
c->Request.CDB[8] = (size >> 8) & 0XFF;
break;
+ case BMIC_SENSE_SUBSYSTEM_INFORMATION:
+ c->Request.CDBLen = 10;
+ c->Request.type_attr_dir =
+ TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
+ c->Request.Timeout = 0;
+ c->Request.CDB[0] = BMIC_READ;
+ c->Request.CDB[6] = BMIC_SENSE_SUBSYSTEM_INFORMATION;
+ c->Request.CDB[7] = (size >> 16) & 0xFF;
+ c->Request.CDB[8] = (size >> 8) & 0XFF;
+ break;
case BMIC_IDENTIFY_CONTROLLER:
c->Request.CDBLen = 10;
c->Request.type_attr_dir =
@@ -6495,7 +6650,6 @@ static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
c->Request.CDB[8] = (size >> 8) & 0XFF;
c->Request.CDB[9] = 0;
break;
-
default:
dev_warn(&h->pdev->dev, "unknown command 0x%c\n", cmd);
BUG();
@@ -8611,6 +8765,9 @@ static void hpsa_remove_one(struct pci_dev *pdev)
free_percpu(h->lockup_detected); /* init_one 2 */
h->lockup_detected = NULL; /* init_one 2 */
/* (void) pci_disable_pcie_error_reporting(pdev); */ /* init_one 1 */
+
+ hpsa_delete_sas_host(h);
+
kfree(h); /* init_one 1 */
}

@@ -9073,18 +9230,369 @@ static void hpsa_drain_accel_commands(struct ctlr_info *h)
} while (1);
}

+static struct hpsa_sas_phy *hpsa_alloc_sas_phy(
+ struct hpsa_sas_port *hpsa_sas_port)
+{
+ struct hpsa_sas_phy *hpsa_sas_phy;
+ struct sas_phy *phy;
+
+ hpsa_sas_phy = kzalloc(sizeof(*hpsa_sas_phy), GFP_KERNEL);
+ if (!hpsa_sas_phy)
+ return NULL;
+
+ phy = sas_phy_alloc(hpsa_sas_port->parent_node->parent_dev,
+ hpsa_sas_port->next_phy_index);
+ if (!phy) {
+ kfree(hpsa_sas_phy);
+ return NULL;
+ }
+
+ hpsa_sas_port->next_phy_index++;
+ hpsa_sas_phy->phy = phy;
+ hpsa_sas_phy->parent_port = hpsa_sas_port;
+
+ return hpsa_sas_phy;
+}
+
+static void hpsa_free_sas_phy(struct hpsa_sas_phy *hpsa_sas_phy)
+{
+ struct sas_phy *phy = hpsa_sas_phy->phy;
+
+ sas_port_delete_phy(hpsa_sas_phy->parent_port->port, phy);
+ sas_phy_free(phy);
+ if (hpsa_sas_phy->added_to_port)
+ list_del(&hpsa_sas_phy->phy_list_entry);
+ kfree(hpsa_sas_phy);
+}
+
+static int hpsa_sas_port_add_phy(struct hpsa_sas_phy *hpsa_sas_phy)
+{
+ int rc;
+ struct hpsa_sas_port *hpsa_sas_port;
+ struct sas_phy *phy;
+ struct sas_identify *identify;
+
+ hpsa_sas_port = hpsa_sas_phy->parent_port;
+ phy = hpsa_sas_phy->phy;
+
+ identify = &phy->identify;
+ memset(identify, 0, sizeof(*identify));
+ identify->sas_address = hpsa_sas_port->sas_address;
+ identify->device_type = SAS_END_DEVICE;
+ identify->initiator_port_protocols = SAS_PROTOCOL_STP;
+ identify->target_port_protocols = SAS_PROTOCOL_STP;
+ phy->minimum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
+ phy->maximum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
+ phy->minimum_linkrate = SAS_LINK_RATE_UNKNOWN;
+ phy->maximum_linkrate = SAS_LINK_RATE_UNKNOWN;
+ phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
+
+ rc = sas_phy_add(hpsa_sas_phy->phy);
+ if (rc)
+ return rc;
+
+ sas_port_add_phy(hpsa_sas_port->port, hpsa_sas_phy->phy);
+ list_add_tail(&hpsa_sas_phy->phy_list_entry,
+ &hpsa_sas_port->phy_list_head);
+ hpsa_sas_phy->added_to_port = true;
+
+ return 0;
+}
+
+static int
+ hpsa_sas_port_add_rphy(struct hpsa_sas_port *hpsa_sas_port,
+ struct sas_rphy *rphy)
+{
+ struct sas_identify *identify;
+
+ identify = &rphy->identify;
+ identify->sas_address = hpsa_sas_port->sas_address;
+ identify->initiator_port_protocols = SAS_PROTOCOL_STP;
+ identify->target_port_protocols = SAS_PROTOCOL_STP;
+
+ return sas_rphy_add(rphy);
+}
+
+static struct hpsa_sas_port
+ *hpsa_alloc_sas_port(struct hpsa_sas_node *hpsa_sas_node,
+ u64 sas_address)
+{
+ int rc;
+ struct hpsa_sas_port *hpsa_sas_port;
+ struct sas_port *port;
+
+ hpsa_sas_port = kzalloc(sizeof(*hpsa_sas_port), GFP_KERNEL);
+ if (!hpsa_sas_port)
+ return NULL;
+
+ INIT_LIST_HEAD(&hpsa_sas_port->phy_list_head);
+ hpsa_sas_port->parent_node = hpsa_sas_node;
+
+ port = sas_port_alloc_num(hpsa_sas_node->parent_dev);
+ if (!port)
+ goto free_hpsa_port;
+
+ rc = sas_port_add(port);
+ if (rc)
+ goto free_sas_port;
+
+ hpsa_sas_port->port = port;
+ hpsa_sas_port->sas_address = sas_address;
+ list_add_tail(&hpsa_sas_port->port_list_entry,
+ &hpsa_sas_node->port_list_head);
+
+ return hpsa_sas_port;
+
+free_sas_port:
+ sas_port_free(port);
+free_hpsa_port:
+ kfree(hpsa_sas_port);
+
+ return NULL;
+}
+
+static void hpsa_free_sas_port(struct hpsa_sas_port *hpsa_sas_port)
+{
+ struct hpsa_sas_phy *hpsa_sas_phy;
+ struct hpsa_sas_phy *next;
+
+ list_for_each_entry_safe(hpsa_sas_phy, next,
+ &hpsa_sas_port->phy_list_head, phy_list_entry)
+ hpsa_free_sas_phy(hpsa_sas_phy);
+
+ sas_port_delete(hpsa_sas_port->port);
+ list_del(&hpsa_sas_port->port_list_entry);
+ kfree(hpsa_sas_port);
+}
+
+static struct hpsa_sas_node *hpsa_alloc_sas_node(struct device *parent_dev)
+{
+ struct hpsa_sas_node *hpsa_sas_node;
+
+ hpsa_sas_node = kzalloc(sizeof(*hpsa_sas_node), GFP_KERNEL);
+ if (hpsa_sas_node) {
+ hpsa_sas_node->parent_dev = parent_dev;
+ INIT_LIST_HEAD(&hpsa_sas_node->port_list_head);
+ }
+
+ return hpsa_sas_node;
+}
+
+static void hpsa_free_sas_node(struct hpsa_sas_node *hpsa_sas_node)
+{
+ struct hpsa_sas_port *hpsa_sas_port;
+ struct hpsa_sas_port *next;
+
+ if (!hpsa_sas_node)
+ return;
+
+ list_for_each_entry_safe(hpsa_sas_port, next,
+ &hpsa_sas_node->port_list_head, port_list_entry)
+ hpsa_free_sas_port(hpsa_sas_port);
+
+ kfree(hpsa_sas_node);
+}
+
+static struct hpsa_scsi_dev_t
+ *hpsa_find_device_by_sas_rphy(struct ctlr_info *h,
+ struct sas_rphy *rphy)
+{
+ int i;
+ struct hpsa_scsi_dev_t *device;
+
+ for (i = 0; i < h->ndevices; i++) {
+ device = h->dev[i];
+ if (!device->sas_port)
+ continue;
+ if (device->sas_port->rphy == rphy)
+ return device;
+ }
+
+ return NULL;
+}
+
+static int hpsa_add_sas_host(struct ctlr_info *h)
+{
+ int rc;
+ struct device *parent_dev;
+ struct hpsa_sas_node *hpsa_sas_node;
+ struct hpsa_sas_port *hpsa_sas_port;
+ struct hpsa_sas_phy *hpsa_sas_phy;
+
+ parent_dev = &h->scsi_host->shost_gendev;
+
+ hpsa_sas_node = hpsa_alloc_sas_node(parent_dev);
+ if (!hpsa_sas_node)
+ return -ENOMEM;
+
+ hpsa_sas_port = hpsa_alloc_sas_port(hpsa_sas_node, h->sas_address);
+ if (!hpsa_sas_port) {
+ rc = -ENODEV;
+ goto free_sas_node;
+ }
+
+ hpsa_sas_phy = hpsa_alloc_sas_phy(hpsa_sas_port);
+ if (!hpsa_sas_phy) {
+ rc = -ENODEV;
+ goto free_sas_port;
+ }
+
+ rc = hpsa_sas_port_add_phy(hpsa_sas_phy);
+ if (rc)
+ goto free_sas_phy;
+
+ h->sas_host = hpsa_sas_node;
+
+ return 0;
+
+free_sas_phy:
+ hpsa_free_sas_phy(hpsa_sas_phy);
+free_sas_port:
+ hpsa_free_sas_port(hpsa_sas_port);
+free_sas_node:
+ hpsa_free_sas_node(hpsa_sas_node);
+
+ return rc;
+}
+
+static void hpsa_delete_sas_host(struct ctlr_info *h)
+{
+ hpsa_free_sas_node(h->sas_host);
+}
+
+static int hpsa_add_sas_device(struct hpsa_sas_node *hpsa_sas_node,
+ struct hpsa_scsi_dev_t *device)
+{
+ int rc;
+ struct hpsa_sas_port *hpsa_sas_port;
+ struct sas_rphy *rphy;
+
+ hpsa_sas_port = hpsa_alloc_sas_port(hpsa_sas_node, device->sas_address);
+ if (!hpsa_sas_port)
+ return -ENOMEM;
+
+ rphy = sas_end_device_alloc(hpsa_sas_port->port);
+ if (!rphy) {
+ rc = -ENODEV;
+ goto free_sas_port;
+ }
+
+ hpsa_sas_port->rphy = rphy;
+ device->sas_port = hpsa_sas_port;
+
+ rc = hpsa_sas_port_add_rphy(hpsa_sas_port, rphy);
+ if (rc)
+ goto free_sas_port;
+
+ return 0;
+
+free_sas_port:
+ hpsa_free_sas_port(hpsa_sas_port);
+ device->sas_port = NULL;
+
+ return rc;
+}
+
+static void hpsa_remove_sas_device(struct hpsa_scsi_dev_t *device)
+{
+ if (device->sas_port) {
+ hpsa_free_sas_port(device->sas_port);
+ device->sas_port = NULL;
+ }
+}
+
+static int
+hpsa_sas_get_linkerrors(struct sas_phy *phy)
+{
+ return 0;
+}
+
+static int
+hpsa_sas_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
+{
+ return 0;
+}
+
+static int
+hpsa_sas_get_bay_identifier(struct sas_rphy *rphy)
+{
+ return -ENXIO;
+}
+
+static int
+hpsa_sas_phy_reset(struct sas_phy *phy, int hard_reset)
+{
+ return 0;
+}
+
+static int
+hpsa_sas_phy_enable(struct sas_phy *phy, int enable)
+{
+ return 0;
+}
+
+static int
+hpsa_sas_phy_setup(struct sas_phy *phy)
+{
+ return 0;
+}
+
+static void
+hpsa_sas_phy_release(struct sas_phy *phy)
+{
+}
+
+static int
+hpsa_sas_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates)
+{
+ return -EINVAL;
+}
+
+/* SMP = Serial Management Protocol */
+static int
+hpsa_sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
+struct request *req)
+{
+ return -EINVAL;
+}
+
+static struct sas_function_template hpsa_sas_transport_functions = {
+ .get_linkerrors = hpsa_sas_get_linkerrors,
+ .get_enclosure_identifier = hpsa_sas_get_enclosure_identifier,
+ .get_bay_identifier = hpsa_sas_get_bay_identifier,
+ .phy_reset = hpsa_sas_phy_reset,
+ .phy_enable = hpsa_sas_phy_enable,
+ .phy_setup = hpsa_sas_phy_setup,
+ .phy_release = hpsa_sas_phy_release,
+ .set_phy_speed = hpsa_sas_phy_speed,
+ .smp_handler = hpsa_sas_smp_handler,
+};
+
/*
* This is it. Register the PCI driver information for the cards we control
* the OS will call our registered routines when it finds one of our cards.
*/
static int __init hpsa_init(void)
{
- return pci_register_driver(&hpsa_pci_driver);
+ int rc;
+
+ hpsa_sas_transport_template =
+ sas_attach_transport(&hpsa_sas_transport_functions);
+ if (!hpsa_sas_transport_template)
+ return -ENODEV;
+
+ rc = pci_register_driver(&hpsa_pci_driver);
+
+ if (rc)
+ sas_release_transport(hpsa_sas_transport_template);
+
+ return rc;
}

static void __exit hpsa_cleanup(void)
{
pci_unregister_driver(&hpsa_pci_driver);
+ sas_release_transport(hpsa_sas_transport_template);
}

static void __attribute__((unused)) verify_offsets(void)
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
index 9c983a9..ae5beda 100644
--- a/drivers/scsi/hpsa.h
+++ b/drivers/scsi/hpsa.h
@@ -33,6 +33,29 @@ struct access_method {
unsigned long (*command_completed)(struct ctlr_info *h, u8 q);
};

+/* for SAS hosts and SAS expanders */
+struct hpsa_sas_node {
+ struct device *parent_dev;
+ struct list_head port_list_head;
+};
+
+struct hpsa_sas_port {
+ struct list_head port_list_entry;
+ u64 sas_address;
+ struct sas_port *port;
+ int next_phy_index;
+ struct list_head phy_list_head;
+ struct hpsa_sas_node *parent_node;
+ struct sas_rphy *rphy;
+};
+
+struct hpsa_sas_phy {
+ struct list_head phy_list_entry;
+ struct sas_phy *phy;
+ struct hpsa_sas_port *parent_port;
+ bool added_to_port;
+};
+
struct hpsa_scsi_dev_t {
unsigned int devtype;
int bus, target, lun; /* as presented to the OS */
@@ -41,6 +64,7 @@ struct hpsa_scsi_dev_t {
u8 expose_device;
#define RAID_CTLR_LUNID "\0\0\0\0\0\0\0\0"
unsigned char device_id[16]; /* from inquiry pg. 0x83 */
+ u64 sas_address;
unsigned char vendor[8]; /* bytes 8-15 of inquiry data */
unsigned char model[16]; /* bytes 16-31 of inquiry data */
unsigned char raid_level; /* from inquiry page 0xC1 */
@@ -77,6 +101,7 @@ struct hpsa_scsi_dev_t {
struct hpsa_scsi_dev_t *phys_disk[RAID_MAP_MAX_ENTRIES];
int nphysical_disks;
int supports_aborts;
+ struct hpsa_sas_port *sas_port;
int external; /* 1-from external array 0-not <0-unknown */
};

@@ -134,6 +159,7 @@ struct ctlr_info {
char *product_name;
struct pci_dev *pdev;
u32 board_id;
+ u64 sas_address;
void __iomem *vaddr;
unsigned long paddr;
int nr_cmds; /* Number of commands allowed on this controller */
@@ -272,6 +298,7 @@ struct ctlr_info {
wait_queue_head_t event_sync_wait_queue;
struct mutex reset_mutex;
u8 reset_in_progress;
+ struct hpsa_sas_node *sas_host;
};

struct offline_device_entry {
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
index 4910344..d92ef0d 100644
--- a/drivers/scsi/hpsa_cmd.h
+++ b/drivers/scsi/hpsa_cmd.h
@@ -290,6 +290,7 @@ struct SenseSubsystem_info {
#define BMIC_SET_DIAG_OPTIONS 0xF4
#define BMIC_SENSE_DIAG_OPTIONS 0xF5
#define HPSA_DIAG_OPTS_DISABLE_RLD_CACHING 0x40000000
+#define BMIC_SENSE_SUBSYSTEM_INFORMATION 0x66

/* Command List Structure */
union SCSI3Addr {
@@ -828,5 +829,18 @@ struct bmic_identify_physical_device {
u8 padding[112];
};

+struct bmic_sense_subsystem_info {
+ u8 primary_slot_number;
+ u8 reserved[3];
+ u8 chasis_serial_number[32];
+ u8 primary_world_wide_id[8];
+ u8 primary_array_serial_number[32]; /* NULL terminated */
+ u8 primary_cache_serial_number[32]; /* NULL terminated */
+ u8 reserved_2[8];
+ u8 secondary_array_serial_number[32];
+ u8 secondary_cache_serial_number[32];
+ u8 pad[332];
+};
+
#pragma pack()
#endif /* HPSA_CMD_H */